diff --git a/js/main.js b/js/main.js
index 887b884..ae5f154 100644
--- a/js/main.js
+++ b/js/main.js
@@ -81,6 +81,19 @@ $(document).ready(function () {
         return parentDir;
     }
 
+    function getREADMEmdFile(filesData, path) {
+
+        if (path === "") {
+            return null;
+        }
+
+        var readmeFile = filesData.find(function (fileData) {
+            return fileData.name === "README.md" && fileData.type === "file";
+        });
+
+        return readmeFile ? path + "README.md" : null;
+    }
+
     function renderFileList(filesData, path) {
 
         var sortBy = $('input[name=sort]:checked').val();
@@ -190,6 +203,19 @@ $(document).ready(function () {
                 console.log("replaceState", path);
                 history.replaceState(null, path, '#' + path);
 
+                if (path) {
+                    var readmePath = getREADMEmdFile(filesData, path);
+                    if (readmePath) {
+                        var zeroMdElement = document.createElement("zero-md");
+                        zeroMdElement.setAttribute("src", filesBaseUrl + readmePath);
+                        document.querySelector("body > div.container").appendChild(zeroMdElement);
+                    } else {
+                        var zeroMdElement = document.querySelector("zero-md");
+                        if (zeroMdElement) {
+                            document.querySelector("body > div.container").removeChild(zeroMdElement);
+                        }
+                    }
+                }
 
                 isNavigating = false;
             },